Superstar mare Black Caviar is a surprise nomination for the $1 million Group 1 Lexus Newmarket Handicap (1200m) at Flemington on 10 March. She is also nominated for World Cup night at the end of March.

Nominations for Australia's premier sprint closed today and the defending champion was one of 72 horses entered for the Super Saturday feature.

Peter Moody's glamour girl became the shortest priced and fastest winner of the Newmarket Handicap when she carried 58kg to victory in last year's 137th edition.

It was a performance that earned her the title of the world's champion sprinter and took her unbeaten streak to a perfect 10.

After a stellar 2011 that streak now stands at 16 with the five-year-old a hot favourite to stretch it to 17 when she resumes over 1200 metres at Moonee Valley on Friday night.

With plans set in concrete to tackle 1400-metre Group 1 features at Caulfield on 11 and 25 February, a final decision on whether she contests the Newmarket may be some time off.

Aside from her progression over the next month, the biggest determining factor may be the weight allocated the champion mare when they're released on 28 February.

Pendant, the 1906 winner, is the only mare to have carried more weight to victory in the Newmarket than Black Caviar. She was victorious with 60.5kg.

Moody has entered a total of 11 horses in his pursuit of back-to-back Newmarkets including Emirates Stakes runner-up King's Rose who is being primed for a first-up assault on the sprint.

Black Caviar's arch rival Hay List, who has been sidelined through injury and illness since last May, headlines an impressive list of interstate entries which includes Ilovethiscity, Secret Admirer, Beaded, Ortensia, Grand Nirvana and the untapped Rain Affair.

Other notable entries are Emirates Stakes winner Albert The Fat, the emerging Bel Sprinter, weight-for-age performer Rekindled Interest and three-year-olds Foxwedge and African Pulse.

First acceptances for the Lexus Newmarket Handicap will be taken on Tuesday, 21 February.